http://www.forbes.com/sites/bryanrich/2017/04/03/what-the-vix-is-telling-us-about-this-correction/#3f9587167413

https://theoptionsinsider.com/occ-cleared-contract-volume-nine-percent-march/

http://www.chicagobusiness.com/article/20170403/NEWS01/170409999/nyse-nasdaq-attack-new-chicago-trading-floor-plan-box

http://tradinggods.net/trading-gods-blog/sell-may-go-away-comes-month-early/

http://www.bloomberg.com/news/articles/2017-04-02/money-funds-overhaul-spurs-shakeup-of-dollar-financing-markets

http://www.usatoday.com/story/money/markets/2017/04/02/stock-picking-machines/99792324/

http://www.euronews.com/2017/04/03/euronext-signs-up-ice-to-replace-lse-derivatives-clearing-unit

http://www.forbes.com/sites/hershshefrin/2017/04/02/markets-fiddle-while-the-world-burns/#6a11e84068b3

http://www.investing.com/analysis/weekend-update-march-31,-2017-200180921

http://www.benzinga.com/media/cnbc/17/04/9243764/50-cent-trader-has-been-hoarding-vix-call-options-since-december

http://www.bloombergquint.com/charts/2017/03/31/calmest-market-in-more-than-decade-on-vix-quarterly-drop-chart

http://www.barrons.com/articles/the-least-volatile-quarter-on-record-since-the-1960s-1490994470